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Jason Featheringham

Design Systems Engineer San Francisco

jason@thejase.com github.com/JawsomeJason Grab the PDF

Every gig since the dial-up days. Pop one open to see what I built there.

The permanent record

Kickstarter

Senior Front-End Engineer

Remote (Brooklyn, NY HQ) Jan 2023–Present

  • Design Systems
  • React
  • TypeScript
  • Tailwind CSS
  • Style Dictionary
  • Figma
  • Buildkite
  • Webpack 5
  • Yarn
  • Accessibility
  • Mentorship
  • Documentation
  • Cross-Functional Collaboration
What I did
  • Lead engineer on the Kickstarter Design System (KDS): a React/TypeScript component library with accessible primitives and design tokens that powers the new stuff AND the legacy stuff. Both!!

  • Built a Figma-to-code pipeline (Variables + Code Connect to DTCG JSON to Style Dictionary/Tailwind) so color, type, spacing and motion tokens match in design and in code. No more guessing!

  • Ran “Project Sauce,” a cross-team migration of old-school HAML/jQuery pages to KDS-powered React or style-only versions. Fewer UI defects, way more visual consistency.

  • Made accessibility the default with semantic components, focus management and ARIA audits, so teams caught the high-impact stuff before release.

  • Teamed up with Product, Design and a bunch of feature crews (Pledge Redemption, Payments) to scope and ship front-end work that unblocked roadmap milestones.

  • Wrote the standards, RFCs and tech docs, and paired constantly to mentor engineers on CSS architecture, testing and design token workflows. Mentoring rules.

  • Modernized the build and CI (Webpack 5, Yarn v4, Buildkite workflows) and added component and visual regression testing, so the pipeline quit flaking out.

  • Evaluated and prototyped experimentation platform integrations (feature flags, A/B testing) for safer, faster iteration across front end and back end.

Humu

Senior Front-End Engineer

San Francisco, CA Jun 2022–Present

  • Monorepos
  • React
  • styled-components
  • Component Libraries
  • Material UI
  • Ladle
  • TypeScript
  • GraphQL
  • Python
  • Contentful
What I did
  • Planned and spec’d the front end for the Insights user-engagement reports for administrators, which made the whole thing way more intuitive for end users.

  • Big-time contributor to the Humu Design System component library on Material UI, and its loudest advocate. Result: a consistent, cohesive experience across the platform.

  • Took a department-wide leadership role mentoring on CSS and accessibility best practices and docs. Outcome: a more inclusive, accessible platform for everybody.

  • Pitched in on team cohesion and morale with regular team-building and a positive work environment. Good vibes only.

  • Held regular pair-programming sessions with junior engineers to help them level up and grow their skills.

  • Worked with cross-functional teams to find what needed fixing and fixed it, boosting efficiency and productivity.

Unicycle

Senior Front-End Engineer

San Francisco, CA Oct 2021–Apr 2022

  • React
  • TypeScript
What I did
  • Set up and shared the know-how, methods and best practices for site architecture, CSS and accessibility. Everybody got the memo.

  • Stepped up as Technical Lead and chopped complex tasks into manageable, parallelizable pieces. Teamwork makes the dream work.

  • Mentored and backed up teammates on projects and docs, which made for a more cohesive, productive crew.

  • Got engineering and design hanging out at the same lunch table, which streamlined the product cycle and made the whole experience better.

  • Brought in new tech and techniques that sped up front-end performance and made the UI scale.

  • Led the build on several key features and functions on the site, which cranked up user engagement and satisfaction.

Brightwheel

Lead Front-End Engineer

San Francisco, CA Jul 2019–Sep 2021

What I did
  • Lead engineer on the front-end component library, helping codify the whole application experience.

  • Wrote a serious stack of coding standards, brown-bag presentations and technical design docs.

  • Rolled out a standard color and typography toolset, so product and design shipped way faster.

  • Mentored a bunch of colleagues on projects, with extra attention on accessibility and layout chops.

Clover Health

Senior Frontend Engineer

San Francisco, CA Feb 2017–Jul 2019

What I did
  • Lead frontend engineer across multiple internal and member-facing platforms. All of them!

  • Defined and built the UI technical requirements, and got the buy-in, for the Payment Integrity (claim recruitment) platform.

  • Planned, scoped and led the frontend and UI effort for the cloverhealth.com 2018 Annual Enrollment Period project.

  • Active member of the design system initiative, pitching in on modularizing the UI components shared across Clover platforms.

NerdWallet

Senior UX Engineer

San Francisco, CA Nov 2016–Nov 2017

What I did
  • Built the responsive redesigns of the Banking marketplace and the product finder.

  • Engineered the UI/UX side of the money transfer rates tool.

  • Loud and proud advocate and teacher of usability and accessibility patterns (inside business constraints) that reach as many consumers as possible.

  • Key contributor to the Front-End Infrastructure team’s shared React components and standardized design system.

  • Introduced and evangelized CSS Grid layout standards. Grids rule.

  • Ran the Tiered Browser Support Matrix every quarter, so engineers knew which emerging browser features were encouraged or acceptable by usage metrics.

PagerDuty

UX Engineer

San Francisco, CA Jul 2014–May 2016

What I did
  • Analyzed and built adaptive, intuitive interfaces all across the PagerDuty web application.

  • Migrated the existing platform from Backbone.js to Ember.js. Out with the old!

  • Overhauled the batch user input and invite form for full keyboard-only use, killing the old need to grab a mouse to keep adding users. Average users added per session jumped about 240%, then the same interaction model went app-wide.

  • Created and maintained a single source of truth rulebook and parser for user permissions: roles defined once and parsed on every platform, no repeats, total role parity.

  • The CSS go-to and gatekeeper for the entire application. Hosted tons of brown-bag lunches on managing CSS complexity.

Hunters Alley

Lead Front-End Engineer

San Francisco, CA Sep 2013–Jun 2014

What I did
  • Relentless focus on pixel-perfect builds of the Creative team’s designs (tight with the creative crew), while keeping everything responsive.

  • Owner of the CSS architecture (Sass pre-processor plus OO/BEM class structure).

  • Used Angular JS for event delegation while keeping a progressively-enhanced approach the whole way.

  • Restructured and built out content for SEO and accessibility/usability.

  • Modern browser-centric approach: as long as it is usable on older devices, it works.

One Kings Lane

Lead Front-End Engineer

San Francisco, CA Nov 2011–Jun 2014

What I did
  • Single-handedly engineered the mobile-first, mobile-optimized experience, scaffolded to scale up from day one.

  • Consumer storefront development, feature enhancements and performance engineering.

  • Big-time passion for Web accessibility and usability.

  • Led development of the mobile-optimized website: rich, usable and accessible for consumers.

  • Spearheaded standards and documentation for fellow front-end engineers.

  • Hosted internal tech talks, passing along the latest development tools and techniques.

  • Sass master. Period.

Warner Bros. Discovery

Manager of Front-End Engineering

Knoxville, TN Sep 2009–Jul 2011

What I did
  • Managed a team of over 10 engineers across 6 of the best cable television brands.

  • Big focus on skill growth matrices, knowledge transfer, risk mitigation and high-ROI toolsets.

  • Led video API development so every brand used one digital video interface, user metrics and ad interstitials included, on whatever video provider was needed.

BlueGill Creative Group

Web Development Consultant

Knoxville, TN Aug 2009–Nov 2009

What I did
  • Website architecture and development, plus mobile application engineering.

Daxor Corporation

Web Front-End Consultant

Oak Ridge, TN Jul 2009–Nov 2009

What I did
  • Website re-engineering, content extraction and template design.

Bounce10

Front-End Engineer

Knoxville, TN Jul 2008–Sep 2009

Focal Point Technologies, Incorporated

Sr. Developer

Knoxville, TN Jan 2001–Jul 2008

U.S. Express

Sr. Web Application Developer

Knoxville, TN Oct 2000–Dec 2001

Knox Online

Developer

Knoxville, TN Oct 1999–Oct 2000

Education

School

B.S. Computer Science

University of Tennessee, Knoxville